Vege Burgers for a crowd (make ahead)

What do you do when your husband is turning 60 and you are having 30 people for a party and only one of them is a vegetarian?  Make vege burgers of course!  I made a large batch of these the day before the party, and simply re-heated them in the oven just before serving.  They were such a hit I had to grab some for the vegetarian in the family!

This  recipe will only serve about 6-8, so if you are making for a crowd just multiply it.  The choice of vegetables can be varied, but I would always put in zucchini, and make fresh breadcrumbs if you have time - the blender will be on the bench anyway.  You can substitute oats for breadcrumbs if you like, and you could add some Panco to the flour if you want them really crisp.  I have not tried it, but I am sure you could put some lentils into the recipe if that takes your fancy.